CNN’s team on the ground in Beirut say they have heard constant blasts and explosions over the past two to three hours and they appear to be ongoing.

It’s unclear exactly how many blasts there have been, but a member of the team described the explosions in Beirut’s southern suburbs as one of the most intense sustained periods of strikes they had seen.

At least two of the blasts triggered what appeared to be secondary explosions, according to the team. One of the blasts hit the road to the airport, about 2.5 km from the facility.